Improvement in rotary harrows



' M. C. KILGORE.

Rotary Harrow.

No. 25,651 Panented Oct.`4. 1859,

UNITED STATES PATENT OFFICE.

MARTIN O. KILGORE, OF \VASHINGTON, IOWA.

IMPROVEMENT IN ROTARY HARROWS.

Specification forming part of Letters Patent No. 25.65 l, dated October 4, 1859.

clear, and exact description thereof, reference' being had to the accompanying drawings, and to the letters of reference marked thereon, ot' which- Figure 1 represents a longitudinal vertical section taken through the harrow and frame. Fig. 2 is a View of the rear of the machine in elevation. I

To enable others skilled in the art to make and use my improvement# will proceed to describe its construction and operation.

A A are two large Wheels, B the axle, and O the dri"er?s seat, placed to 011e side of the frame or platform D and resting upon the axle B. E is a shaft or Windlass which hasits bearings in either side of the frame, and is placed front of the drivers seat and just in rear of the axle B.

On the right of thedrivers seat is aratchetwheel, F, xed to the Windlass, into the teeth of' which works a pawl, and on the end of the windlass isa crank, G. Around this Windlass E pass two chains or cords, a a, which pass down vertically just behind the axle, and are connected to arms I I projectingfrom acollar, J, through which the spindle K of the rotary harrow passes. Immediately above this collar is a ring, L, which keeps the collar down and in place around the spindle. Projecting centrally from the rear ot' the axle B is a socket, N, which has its bearings on a pivot, so as to alloc7 it a laterally-rocking motion. Through this socket passes loosely the spindle Kot the barrow P. The collar J has a projection, R, proceeding` from the t'rontpart of it, to which is attached achain, S,connecting with the front of the bifurcated beam D. This chain acts as a brace to strengthen the parts supporting the harrow against any longitudinal or forward strain.

The object ot' this invention is lo raise the barrow free from the ground for the purpose of transportation, &c., at the same time arranging the parts in such manner that one side ot the barrow can be slightly raised from the ground in order that the other may preponderate, and thus eft'ect a rotary motion without Weights. Also, the harrow is placed by this arrangement above described under the perfect control of the driver, who operates it by the crank-handle G. The machine can be made cheap, simple, and very efficient in its operation, none of the points beingliablc to derangement.

Wha-t I claim as my invention, and desire to secure by Letters Patent, is-

The arrangement and combination of the windlass E, arms I, socket N, collar J, harrow P, and spindle O, as and for the purpose herein shown and described.

MARTIN C. KILGORE.

Witnesses:

ALBER'I` ALLEN, S. P. YOUNG. 

